Clay pavers classification

In accordance with The South African National Standard (SANS 1575:2007) for burnt clay paving units.

PA

Units that are selected or produced for their durability and for a high degree of uniformity in size and shape, and that have dimensions such that the ratio of work size length to work size width is approximately 1:1; 2:1 or 3:1.

Tolerances in work sizes - Length, Width, Thickness

  • Individual Unit - 5mm, 3mm, 3mm

  • Average Dimensions of 32 units (mm) - 2.5mm, 1.5mm, 1.2mm

Average modulus of rupture

NOTE - The following requirement does not apply to paving units of length less than 80 mm.

  • Nominal modulus of rupture - 4MPa

  • Minimum individual modulus of rupture - 2.5MPa

PB

Units that are selected or produced for their durability and for their uniformity in size and shape.

Tolerances in work sizes - Length, Width, Thickness

  • Individual Unit - 6mm, 4mm, 4mm

  • Average Dimensions of 32 units - 3mm, 2mm, 2mm

Average modulus of rupture

NOTE - The following requirement does not apply to paving units of length less than 80 mm.

  • Nominal modulus of rupture - 3MPa

  • Minimum individual modulus of rupture - 2MPa